Here are some other colors limestone can be:
* White: Very pure limestone with few impurities is white.
* Cream: A slightly yellowish shade due to small amounts of iron oxide.
* Yellow: A higher concentration of iron oxide gives limestone a yellow color.
* Brown: Even more iron oxide makes the limestone brown.
* Red: Some limestones are reddish due to the presence of iron oxide and other minerals.
* Black: Limestone can also be black, usually due to the presence of organic matter or manganese oxides.
It's important to note that the color of limestone can vary significantly depending on the specific location and the type of impurities present.